Standard codes commonly used by classification societies and marine valves in various countries

Commonly used standard codes for marine valves:
GB Chinese national standard
GB/T Chinese national recommended standard
GJB China National Military Standard
CB China Shipbuilding Corporation standard
CB/T China Shipbuilding Corporation recommended standard
ISO International Standards International Organization for Standards
ANSI American National Standards Institute American National Standards Institute
DIN German National Standard Deutsches Institut für Normung e.V.
JIS Japanese Industrial Standards Japanese Industrial Standards
BS British National Standard British Standard
NF French National Standard AFNOR
ASME American Society of Mechanical Engineers Standard American Society of Mechanical Engineers
ASTM American Society for Testing and Materials standard American Society for Testing and Materials
AISI American Iron and Steel Institute Standard Acronym of American Iron and Steel Institute
API American Petroleum Institute standard American Petroleum Institute
MSS Manufacturers Standardization Society of the Valve and Fitting Industry
MIL American military standard Military (U.S)
JPI Japanese Petroleum Institute standard Japanese Petroleum Institute

The names and codes of the classification societies of various countries for the type approval of marine valves:

China Classification Society CCS
American Bureau of Shipping ABS
British Register of Shipping LR
Bureau Veritas BV
Det Norske Veritas DNV
Kaiji Kyokai NK
Korean Register of Shipping KR
Russian ship registry RS
Italian Register of Shipping RINA